Sun Cluster Software Installation Guide for Solaris OS

Quorum Devices

Sun Cluster configurations use quorum devices to maintain data and resource integrity. If the cluster temporarily loses connection to a node, the quorum device prevents amnesia or split-brain problems when the cluster node attempts to rejoin the cluster. You configure quorum devices by using the scsetup(1M) utility.

Note –

You do not need to configure quorum devices for a single-node cluster.

Consider the following points when you plan quorum devices.

For more information about quorum devices, see “Quorum and Quorum Devices” in Sun Cluster Concepts Guide for Solaris OS and “Quorum Devices” in Sun Cluster Overview for Solaris OS.